Mity CPU Platforms » MitySOM-335x (ARM Cortex-A8 Based Products)

10/28/2013

DM 07:35 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

i ran the patch on your mityarm board. I found the usb to be unstable, ethernet works. dan mcgee

DM 06:19 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

what does this patch address? in the 3.2 kernel the usb works great. the rmii2 ethernet is the problem. dan mcgee

DM 06:12 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

downloading now, the wait on /dev/mmcblk.... is do to the gpio.cd and gpio.wp should be set to -EINVAL. dan mcgee

JC 05:24 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Dan,
I found a patch on the 3.2 branch that may solve the problem your having. I pushed it to a new branch on our git "usb_fix_test". I tried to compile and test it on the board you gave us but it wouldn't get past "Waiting for root... Jonathan Cormier

DM 03:36 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

background:
usb_test runs all day on 3.2 kernel with git tag:cl_v3.2_AM335XPSP_04.06.00.07
on AM335XPSP_04.06.00.02 the following error occurs.(see below)
source code for usb_test is in the ~/board_test/usb_test.c
gcc usb_test.c -o... dan mcgee

BD 02:56 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Dan,
Can you provide specific details on what you are doing to create the usb_test program and what device you have connected to /dev/ttyACM0? How are you determining USB is unstable?
Thanks,
-Bob
Bob Duke

DM 01:47 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

yes the udev update and script does restart the usb2 port. thanks for the patch.
usb is still unstable running ~/usb_test /dev/ttyACM0 test code.
~/usb_test is stable under cl_v3.2_AM335XPSP_04.06.00.07
just a note the hokey-pokey.sh ... dan mcgee

JC 10:25 AM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Dan,
We found a bug in our reference filesystem. I created a wiki page on it. Could you please apply the changes it describes and let us know if it solves your problem.
http://support.criticallink.com/redmine/projects/armc8-platform... Jonathan Cormier

10/25/2013

JC 01:37 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Are you applying your patch on top of these checkouts? Jonathan Cormier

DM 01:21 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

the usb port is stable on tag cl_v3.2_AM335XPSP_04.06.00.07
but Ethernet will not work. usb is unstable on tip AM335XPSP_04.06.00.02 branch, but Ethernet will work.
Any ideas? dan mcgee

DM 10:27 AM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

still a problem with usb on this branch. dan mcgee

AB 10:23 AM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Could you post an updated patch to show what was changed to resolve the issue?
Thank you. Alexander Block

DM 10:04 AM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

thank you for the support dan mcgee

DM 10:01 AM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

commented out some of the pin mux structs and now Ethernet is working. dan mcgee

10/24/2013

DM 01:22 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

we are not using flash dan mcgee

JC 01:15 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

Also do you plan on using the nand? You have a module that has the larger 512MB nand which requires the latest u-boot and kernel image to work (See the CONFIG_NAND_MITYARM_LARGE_PAGE_SUPPORT option for the kernel and the mityarm335x_4kp... Jonathan Cormier

DM 01:14 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

new patch file using format-patch --ignore-space-change dan mcgee

JC 01:08 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

I'm having a hard time finding the actual change in the patch. If you could recreate your patch ignoring white space change that would be much appreciated. Jonathan Cormier

JC 01:03 PM Software Development: RE: Ethernet RMII2 working in u-boot, but not kernel

FYI, the kernel has very strict rules about formatting. In this case the use of tabs instead of spaces. Most of your patch is converting tabs to spaces which is a big no no for kernel code.
https://www.kernel.org/doc/Documentation/Cod... Jonathan Cormier

DM 12:43 PM Software Development: Ethernet RMII2 working in u-boot, but not kernel

problem description:
no eth0 data begin transmitted on tx0 or tx1 lines, running with rmii2 configuration.
mac_control loopback not working.
ifconfig stats for eth0: showing tx counter incrementing, all other counters are zero.
*... dan mcgee

10/22/2013

JC 11:42 AM PCB Development: RE: VBACKUP Current Draw

Mark,
This change has been added to u-boot. The following branches have the fix:
* AM335XPSP_04.06.00.03
http://support.criticallink.com/gitweb/?p=u-boot-mityarm-335x.git;a=commit;h=359dcc2dc57a10c0e495c8f352cd0812d1db8171
* AM3... Jonathan Cormier